and they said sammy hager. >> all right, so conan joking about the ninth republican presidential debate on wednesday. so it is hard to believe that last night was the tenth debate of this political season. our wolf blitzer talks about the need for such debates in this week's blitzer's blog. >> it is pretty amazing how significant the republican presidential debates have proven to be this year. they have clearly shaped out attitudes in rather dramatic way. presidential historians may write that this was the year of the debate. there already were so many memorable moments, many that the candidates would almost certainly like to forget. the other night in michigan, for example, may have been the most memorable, most awkward debate moment ever. that was when rick perry had a brain freeze for nearly 60 seconds and forgot the third agency of the u.s. government he would like to eliminate, even though he had routinely cited those three agencies in his campaign stump speech over the years. >> i can't. the third one, i can't. sorry. oops. >> the education, by the way, commerce and energy. but th